1309896734 has 8 divisors (see below), whose sum is σ = 1974819528. Its totient is φ = 651623560.

The previous prime is 1309896703. The next prime is 1309896751. The reversal of 1309896734 is 4376989031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661912 + ... + 1662699.

It is an arithmetic number, because the mean of its divisors is an integer number (246852441).

Almost surely, 2^1309896734 is an apocalyptic number.

1309896734 is a deficient number, since it is larger than the sum of its proper divisors (664922794).

1309896734 is a wasteful number, since it uses less digits than its factorization.

1309896734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324810.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 1309896734 is about 36192.4955481105. The cubic root of 1309896734 is about 1094.1554294570.

The spelling of 1309896734 in words is "one billion, three hundred nine million, eight hundred ninety-six thousand, seven hundred thirty-four".